Table 1. Comparison of a priori candidate models of individual differences in corticosterone responsiveness.
id | Random effect | Model description | K | DIC | ΔDIC |
3 | ∼idh(treatment):band | random intercept and slope, no covariance between slope and intercept | 6 | 176.1 | 0.000 |
2 | ∼us(treatment):band | random intercept and slope, covariance between slope and intercept | 6 | 176.5 | 0.430 |
1 | ∼band | random slope only | 5 | 178.9 | 2.796 |
4 | ∼treatment:band | same variance for intercept and slope, no covariance | 5 | 179.4 | 3.318 |
The variables under the column “Random effect” indicate the specific random effect in the model in which “band” corresponds to the individual. K is the number of parameters in the model, DIC is deviance information criterion, ΔDIC indicates the difference between DIC value of a given model and the model with the lowest DIC. All models were fit with treatment as a fixed effect in the model; therefore, models differ in their random structure.